Implementing cyclic redundancy check logic in Informatica

Gurus
Did any one implement the cyclic redundancy check logic in Informatica? If so how can we approach to do it? Please throw some light or please provide the links..
The goal is, if we have a dimension and for each record we produce a CRC checksum. And for the incoming records too we produce the CRC checksum and compare both for any changes. Instead we compare all the columns data its simple to compare the CRC
Please let me know
Thanks
kiran

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At a previous job we were using INFA Analytics solution which included a CRC caclulation transform. However, INFA sold that software off to another company (I don't remember the name) when it got out of the packaged solutions business.

I would suggest doing a web search to see if there is a transform available.